1. Which one of the following is not an Internet Service Provider (ISP)?
(C) ERNET India
(D) Infotech India Ltd.

2. The hexadecimal number system consists of the symbols
(A) 0 – 7
(B) 0 – 9 , A – F
(C) 0 – 7, A – F
(D) None of these

3. The binary equivalent of (–15)10 is (2’s complement system is used)
(A) 11110001
(B) 11110000
(C) 10001111
(D) None of these

4. 1 GB is equal to
(A) 230 bits
(B) 230 bytes
(C) 220 bits
(D) 220 bytes

5. The set of computer programs that manage the hardware/software of a computer is called
(A) Compiler system
(B) Operation system
(C) Operating system
(D) None of these

6. S/MIME in Internet technology stands for
(A) Secure Multipurpose Internet Mail Extension
(B) Secure Multimedia Internet Mail Extension
(C) Simple Multipurpose Internet Mail Extension
(D) Simple Multimedia Internet Mail Extension